Referees need to be encouraged. Goodness knows the game is desperate for more men and women of calibre, understanding and perception to be involved. However, they need to work through a decent sort of apprenticeship to allow them to cope with the sort of dramas which can unfold when heavyweight nations compete.
The 38-year-old Garces may be heading north in his career but a few Junior World Championship games, Heineken Cup and French club rugby do not sound the strongest credentials.
Not even a 20-minute stint as an injury replacement in a test between England and Scotland and control of England and Italy in the Six Nations.
Looking on the bright side, though, as Eric Idle would warble, the All Blacks then have the more senior contributions from Alain Rolland, Craig Joubert and George Clancy to contend with for their tests against Italy, Wales and England.
And next Saturday in Brisbane, the All Blacks and Wallabies will have Joubert in charge of a match in which the visitors are seeking to equal a tier one test record-winning sequence.
Joubert had a curious performance last week in Rosario when he seemed to abdicate decisions in the Pumas match with the Wallabies.
But whatever you think of Joubert, he has refereed plenty of top-grade games and understands the tensions and rhythms of those matches.
Garces? Who'd know, but the IRB seems confident.